jcalc.net
Observed Aug 10, 2026, 20:53 UTC (5d ago). Every field below was attested with an Ed25519 signature at scan time.
jcalc.net is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting jcalc.net under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.
Watch jcalc.net Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Google Workspace
Let's Encrypt
Google Search ConsoleDNS Records
A 1
35.213.238.102
MX 5
5alt1.aspmx.l.google.com10alt3.aspmx.l.google.com5alt2.aspmx.l.google.com10alt4.aspmx.l.google.com1aspmx.l.google.com
TXT 2
v=spf1 +a +mx +ip4:35.213.224.144 include:_spf.google.com include:jcalc.net.spf.auto.dnssmarthost.net ~allgoogle-site-verification=h20XHW7H03kP6HPmlZm67vG61dnslUNE00-Xb_r0gKo
NS 2
ns2.siteground.netns1.siteground.net
SOA 1
ns1.siteground.net admins.siteground.com
DMARC_RECORDS 1
v=DMARC1; p=none; aspf=r; adkim=r;
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
*.jcalc.net |
C=US, O=Let's Encrypt, CN=YR1 | Sun, 18 Oct 2026 00:44:46 +0000 |
YR1 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (0)
None observed.
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_9df9f2b40ed6ba06- Output Hash
129cc0fc04e6f0ab8382892847f051109a4b553cfbabe41b50fc0f7442ab4dc8- Signature
ed25519:1ab89cab1a5b1f1b68d786023c97489037a3e6d44c94df6b4fc92bcafd4f220d7a3a88a0fe90f9fcca40f5983e392219de779150230fd6cfe5ad2695a3e60304- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast